North Korea has labeled inter-Korean relations "hopeless" in its first official reaction to last week's summit between South Korea and the United States.
On Sunday, North Korea's Committee for the Peaceful Reunification of Korea, which handles cross-border affairs, bluntly criticized President Park Geun-hye calling her "a wicked traitor" and a "despicable prostitute selling off the nation."
It said the outcome of President Obama's trip to South Korea clearly justified North Korea's determination to counter the U.S. by force and settle the conflict with an all-out nuclear showdown.
South Korea's Unification Ministry said North Korea's rhetoric was a violation of an inter-Korean agreement to stop cross-border slandering reached in February.
Following Friday's summit talks in Seoul, the South Korean and U.S. leaders vowed to stand "shoulder-to-shoulder" against any North Korean provocation.
North Korea has been ratcheting up tensions lately, following its threat last month to conduct a new type of a nuclear test.
Recent satellite imagery has shown increased activity at the regime's nuclear test site.
South Korea, the U.S. and Japan are concerned the upcoming test could be larger than North Korea's three previous tests.
The latest rhetoric out of Pyongyang comes as North Korean leader Kim Jong-un revealed plans on Sunday to develop the regime's military prowess for a confrontation with the United States.
Experts view the recent escalation in tensions as Pyongyang's attempt to justify itself ahead of its fourth nuclear test.
South Korea's Defense Ministry said last week the North warned of "something big and unimaginable" for its enemies before April 30th.
Hwang Sung-hee, Arirang News.